tyu87 syu8 ryu877 qyu87 pyu8
47t8 37t877 27t87 17t8 07t877
fht877 eht87 dht8 cht877 bht87
qqs87 pqs8 oqs877 nqs87 mqs8
1zr8 0zr877 zzr87 yzr8 xzr877